package org.example.demo_xiaowuz.mapper;


import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import org.example.demo_xiaowuz.model.UserInfo;

@Mapper
public interface UserMapper {
    @Select("select * from user_info where user_name=#{userName}")
    UserInfo getByUserName(String userName);
}
